In my research I quickly came across the Hovercraft Museum in Hampshire. It's a great resource for links, including clubs, kits, and current manufacturers.
They have a small photo album of their current displays, usually with a quick paragraph about the vessels, but not too much more. And they're promising a new website in 2012, I hope that it will have more content about the historical vessels. There's lots of stuff if you browse photos tagged at the museum, like these.
They have a lot of large vessels which are large enough to be seen from satellite imagery such as google maps.